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Ford Mustang MOT Results

81.0% pass rate
from 862 tests in 2020
(31% better than other pre-1990 cars)
Number of tests by age
Failure rates by item

Here you can drill down into the failure rates for each item on the test. We've also compared the rates to the average results for pre-1990 cars and highlighted areas where the Ford Mustang is unusually good or bad.

  • 9.9% fail on Lamps, reflectors and electrical equipment (27% better than other pre-1990 cars)
    • 4.2% fail on Electrical equipment (82% worse than other pre-1990 cars)
      • 2.8% fail on Horn (78% worse than other pre-1990 cars)
      • 1.4% fail on Battery(ies)
      • 0.12% fail on Electrical wiring
    • 3.1% fail on Direction indicators
      • 3.1% fail on Flashing type
        • 2.8% fail on Individual direction indicators (73% worse than other pre-1990 cars)
        • 0.23% fail on All direction indicators
        • 0.12% fail on Side repeaters
    • 2.6% fail on Headlamp aim
      • 2.6% fail on Headlamp aim
    • 2.1% fail on Stop lamp
    • 1.4% fail on Position lamps
      • 1.4% fail on Position lamp
    • 1.3% fail on Headlamps (58% better than other pre-1990 cars)
      • 1.0% fail on Headlamp (64% better than other pre-1990 cars)
      • 0.46% fail on Dipswitch (3 times worse than other pre-1990 cars)
    • 1.2% fail on Registration plate lamp(s)
    • 0.23% fail on Front and rear fog lamps (90% better than other pre-1990 cars)
      • 0.23% fail on Rear fog lamp (90% better than other pre-1990 cars)
        • 0.23% fail on Rear fog lamp (90% better than other pre-1990 cars)
  • 9.2% fail on Brakes
    • 8.4% fail on Brake performance
      • 7.0% fail on Parking brake efficiency (sp) (140% worse than other pre-1990 cars)
        • 5.9% fail on Rbt (sp) (120% worse than other pre-1990 cars)
        • 0.81% fail on Decelerometer (sp) (2 times worse than other pre-1990 cars)
        • 0.23% fail on Gradient tester (sp) (12 times worse than other pre-1990 cars)
      • 2.6% fail on Service brake performance
        • 2.1% fail on Rbt
          • 1.2% fail on Service brake performance (56% better than other pre-1990 cars)
          • 1.2% fail on Service brake imbalance
        • 0.35% fail on Decelerometer
          • 0.35% fail on Service brake performance
        • 0.12% fail on Plate brake tester
          • 0.12% fail on Service brake performance
      • 2.1% fail on Parking brake performance
        • 1.7% fail on Rbt
          • 1.3% fail on Parking brake performance
          • 0.35% fail on Parking (secondary brake performance)
          • 0.12% fail on Parking brake efficiency (Trikes, quads and pre-68 vehicles)
        • 0.35% fail on Plate brake tester (12 times worse than other pre-1990 cars)
          • 0.23% fail on Parking brake performance (18 times worse than other pre-1990 cars)
          • 0.12% fail on Parking (secondary brake performance)
      • 2.0% fail on Service Brake Efficiency (sp)
        • 1.9% fail on Rbt (sp)
          • 1.2% fail on Service brake performance
          • 0.81% fail on Service brake imbalance (60% better than other pre-1990 cars)
        • 0.12% fail on Decelerometer (sp)
      • 0.12% fail on Brake performance not tested
    • 0.58% fail on Parking brake control
      • 0.58% fail on Lever
    • 0.35% fail on Rigid brake pipes
    • 0.35% fail on Mechanical brake components
      • 0.23% fail on Brake cables, rods, levers and linkages
        • 0.23% fail on Cable
      • 0.12% fail on Brake discs and drums
        • 0.12% fail on Brake drums
    • 0.23% fail on Hydraulic systems
      • 0.12% fail on Master cylinder
      • 0.12% fail on Valves
    • 0.23% fail on Flexible brake hoses
    • 0.23% fail on Brake actuators (including spring brakes or hydraulic cylinders)
      • 0.23% fail on Hydraulic brake cylinder
    • 0.12% fail on Service brake pedal or hand lever
      • 0.12% fail on Pedal
    • 0.12% fail on Air and vacuum systems
      • 0.12% fail on Servos
  • 5.8% fail on Visibility
    • 4.9% fail on Washers
    • 1.0% fail on Wipers (57% better than other pre-1990 cars)
    • 0.12% fail on View to rear
      • 0.12% fail on Mirrors
  • 4.5% fail on Suspension (45% better than other pre-1990 cars)
    • 2.1% fail on Suspension arms
      • 1.2% fail on Ball joint
      • 0.93% fail on Ball joint dust cover
      • 0.35% fail on Pins and bushes
    • 0.81% fail on Component mounting prescribed areas (73% better than other pre-1990 cars)
    • 0.58% fail on Wheel bearings
    • 0.46% fail on Shock absorbers
    • 0.46% fail on Anti-roll bars
      • 0.23% fail on Pins and bushes
      • 0.23% fail on Linkage pins and bushes
    • 0.46% fail on Other suspension component
      • 0.35% fail on Ball joint
      • 0.12% fail on Ball joint dust cover
    • 0.35% fail on Springs
      • 0.23% fail on Leaf springs
        • 0.23% fail on Anchor bracket (16 times worse than other pre-1990 cars)
      • 0.12% fail on Coil springs
        • 0.12% fail on Coil spring
  • 3.4% fail on Steering
    • 1.7% fail on Steering linkage components
      • 1.0% fail on Track rod end
      • 0.46% fail on Ball joint
      • 0.35% fail on Intermediate drop arm (3 times worse than other pre-1990 cars)
      • 0.23% fail on Other components
        • 0.23% fail on Steering linkage
      • 0.12% fail on Drag link end
      • 0.12% fail on Steering arm
    • 1.3% fail on Power steering (2 times worse than other pre-1990 cars)
      • 0.58% fail on Rams (25 times worse than other pre-1990 cars)
      • 0.35% fail on Pipes and hoses
      • 0.23% fail on Other components
      • 0.12% fail on Operation
    • 0.70% fail on Steering gear
      • 0.35% fail on Steering box
      • 0.35% fail on Steering rack
    • 0.23% fail on Steering column
    • 0.23% fail on Steering play
      • 0.12% fail on Steering box
      • 0.12% fail on Steering rack
  • 2.2% fail on Body, chassis, structure (68% better than other pre-1990 cars)
    • 0.58% fail on Exhaust system (71% better than other pre-1990 cars)
    • 0.46% fail on Fuel system
      • 0.23% fail on Fuel cap/sealing device
      • 0.12% fail on Tank
      • 0.12% fail on Pipe
      • 0.12% fail on System
    • 0.46% fail on Doors
      • 0.23% fail on Driver's door
        • 0.23% fail on Door condition
      • 0.23% fail on Front passenger's door
        • 0.23% fail on Door condition
    • 0.35% fail on Seats
      • 0.23% fail on Driver's seat
      • 0.23% fail on Passenger's seat
    • 0.12% fail on Integral vehicle structure
      • 0.12% fail on Integral vehicle structure condition
    • 0.12% fail on Chassis
      • 0.12% fail on Chassis condition
    • 0.12% fail on Body
      • 0.12% fail on Panel
  • 0.81% fail on Seat belts and supplementary restraint systems
    • 0.81% fail on Seat belts
      • 0.46% fail on Prescribed areas
      • 0.46% fail on Condition
  • 0.81% fail on Tyres
    • 0.35% fail on Condition
    • 0.35% fail on Tread depth
    • 0.12% fail on Size/type
  • 0.70% fail on Identification of the vehicle
    • 0.70% fail on Registration plates
  • 0.70% fail on Noise, emissions and leaks (84% better than other pre-1990 cars)
    • 0.35% fail on Exhaust emissions (90% better than other pre-1990 cars)
      • 0.35% fail on Spark ignition (90% better than other pre-1990 cars)
        • 0.23% fail on Non catalyst emissions (92% better than other pre-1990 cars)
        • 0.12% fail on Emissions not tested
    • 0.35% fail on Fluid leaks
      • 0.35% fail on Engine oil leaks
  • 0.35% fail on Road Wheels
    • 0.35% fail on Attachment
  • 0.23% fail on Speedometer and speed limiter
    • 0.23% fail on Speedometer